Determination of the Asphalt Binder Content of

Using recycled asphalt shingles in asphalt pavements

The asphalt cement in the shingles is usually air-blown and is substantially harder than the normal asphalt binder used in a standard HMA mix. So the HMA plant operator may use softer asphalt, such as a PG58-28 versus a PG64-22, to offset the harder asphalt contained in the shingles.

2017 Quality in Construction - asphaltpavement.org

2017 Quality in Construction “The asphalt pavement industry is committed to building high-quality projects that deliver superior performance to the traveling public.